Sikhism is a monotheistic religion originated in northern India with around 27 million followers around the world, most of whom live in the Punjab region of India and Pakistan. It was founded by the Guru Nanak, also known as the First Guru in the 16th century.
Buddhism is one of the largest eastern religions in the world. It is embraced by more than 520 million people around the world, most of them live in East Asia, making Buddhism the fourth largest religion in the world after Christianity, Islam, and Hinduism.
Hinduism is one of the world's largest religions, followed by one billion people making it the third largest religion in the world. Most of the Hindus are in the Indian subcontinent. Nevertheless, they are not a religious majority except in India and Nepal. India has a Hindu population of 890 million.